Expanded from last year’s water-testing micro-run (click the following links for my 1.1, 1.2 and 1.3 reviews), digital channel Dave’s original fantasy sitcom makes a welcome return next week, once again nestled in a post-Red Dwarf XII Thursday night slot. “The Trial” follows directly on from “Mr. Wuffles”‘s cliffhanger ending, in which modern day office temp-out-of-water Brian Weaver (James The Inbetweeners Buckley) has inadvertently pissed off a legion of shell-backed Snail people by kicking their ambassador, which he had mistaken for a football.